期刊
ACS APPLIED MATERIALS & INTERFACES
卷 2, 期 3, 页码 658-662出版社
AMER CHEMICAL SOC
DOI: 10.1021/am100005x
关键词
electrospun nanofibers; superhydrophobic; poly(vinylidene fluoride); tetraethyl orthosilicate; solvent resistance; mechanical strength
资金
- Soongsil University
We demonstrate the fabrication of solvent-resistant, mechanically robust, superhydrophobic nanofibrous Mats by electrospinning of poly(vinylidene fluoride) (PVDF) in the presence of inorganic silane materials. The solvent resistance and mechanical strength of nanofibrous mats were dramatically increased through the crystallization of as-spun PVDF fibers or incorporation of a tetraethyl orthosilicate (TEOS) Sol into the nanofibrous matrix. The electrospun nanofibrous mats yielded a water contact angle of 156 degrees that did not vary with TEOS content. The solvent resistance and mechanical robustness of the electrospun mats were significantly enhanced through extensive cross-linking of TEOS, even after short PVDF annealing Limes. The interpenetrating polymer network, which embeds polymer chains in a TEOS network, allows the fabrication of robust functional nanofibers; by combining semicrystalline polymers with electrospinning techniques.
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